CN113015041A

CN113015041A - Sound box

Info

Publication number: CN113015041A
Application number: CN201911316336.8A
Authority: CN
Inventors: 吴海全; 熊福; 余新; 彭久高
Original assignee: Shenzhen Grandsun Electronics Co Ltd
Current assignee: Shenzhen Grandsun Electronics Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2021-06-22

Abstract

The invention provides a sound box, which comprises a box body shell, a loudspeaking component and a driven disk, wherein the box body shell is provided with a sound mixing cavity, a low sound hole communicated to the sound mixing cavity and a sound leading hole communicated to the sound mixing cavity, and the low sound hole and the sound leading hole are arranged at intervals; the loudspeaker component is connected with the box body shell and covers the sound leading hole, the loudspeaker component comprises at least two loudspeakers used for playing audio, and the sound outlet direction of the loudspeakers faces outwards; the driven disc is connected with the box body shell and covers the low sound hole; box shell, loudspeaker subassembly and passive dish enclose jointly and establish formation confined space, and the speaker can drive the vibration of passive dish through the air in the vibration confined space. This audio amplifier has replaced traditional subwoofer to send the bass through mixing the sound chamber and passive dish, and the vibration air current discharge capacity of each speaker of mixing the sound chamber not only can automatic balance, can make the sound pressure coincide of each speaker moreover, has increased the vibration range of passive dish for the bass is fuller, and the bass effect is outstanding more, and simple structure has reduced manufacturing cost.

Description

Sound box

Technical Field

The invention belongs to the technical field of audio signal conversion equipment, and particularly relates to a sound box.

Background

The sound box is a terminal of the whole sound system, which is used for converting audio electric energy into corresponding sound energy and radiating the sound energy to the space, and is an extremely important component of the sound system and is responsible for converting an electric signal into an acoustic signal for people to listen to. But the bass effect is usually not good for current stereo set, influences user's music experience and feels, if add subwoofer not only the structure more complicated and increased manufacturing cost.

Disclosure of Invention

The invention aims to provide a sound box, and aims to solve the technical problems that in the prior art, the bass effect is poor, and the cost is increased if a subwoofer is additionally arranged.

The present invention is achieved as described above, and a sound box includes:

the box body shell is provided with a sound mixing cavity, a low sound hole communicated to the sound mixing cavity and a sound leading hole communicated to the sound mixing cavity, and the low sound hole and the sound leading hole are arranged at intervals;

the loudspeaker component is connected with the box body shell and covers the sound leading hole, the loudspeaker component comprises at least two loudspeakers used for playing audio, and the sound outlet direction of the loudspeakers faces outwards;

the passive disc is connected with the box body shell and covers the low sound hole;

wherein, the box shell loudspeaker subassembly and by the driving disk enclose jointly and establish and form confined space, the speaker can be through the vibration air drive in the confined space driven disk vibration.

In one embodiment, each of the speakers is used for playing audio of different frequency points.

In one embodiment, the speaker assembly further includes a speaker bracket connected to the housing, the speaker bracket defines a plurality of supporting holes, and a speaker is mounted at one of the supporting holes.

In one embodiment, the speaker holder and the plurality of speakers together form an avoiding cavity communicated with the sound mixing cavity, and the avoiding cavity and the sound mixing cavity together form the sealed space.

In one embodiment, the loudspeaker comprises a magnetic circuit mechanism for converting an electric signal into a magnetic signal and a vibration mechanism for converting the magnetic signal into a sound signal through vibration, the magnetic circuit mechanism is located in the avoiding cavity, and the vibration mechanism is connected to the supporting hole so as to transfer vibration energy of the vibration mechanism to the air in the sound mixing cavity through the air in the sealed space.

In one embodiment, the box casing is cylindrical, and the low-sound hole and the sound introduction hole are respectively arranged at two extending ends of the box casing.

In one embodiment, the sound box further comprises an air-permeable support connected to the speaker assembly, and the air-permeable support comprises a support frame connected to the speaker assembly and covering the speaker, and an air-permeable membrane wrapped around the support frame.

In one embodiment, the breathable film is a breathable film made of a textile material.

In one embodiment, the sound box further comprises a sound outlet grille connected to the box body shell and covered on the ventilation support.

In one embodiment, the speaker box further comprises a display screen coupled to the cabinet housing and electrically coupled to the speaker assembly.

Compared with the prior art, the invention has the technical effects that: the sound box of the invention enables the box body shell, the loudspeaker component and the passive disk to jointly enclose to form a sealed space, so that the loudspeaker can drive air in the sealed space to vibrate when playing audio, and enables the discharge capacity of vibrating air flow generated by each loudspeaker to be mixed and tend to balance in the sound mixing cavity by arranging the sound mixing cavity, and the passive disk generates regular rhythmical agitation under the action of the balanced vibrating air flow, so as to push air and transmit vibration into ears of people and produce bass sound effect. The sound box of the invention replaces the traditional subwoofer to send bass through the sound mixing cavity and the passive disk, the sound mixing cavity not only can automatically balance the vibration airflow discharge capacity of each loudspeaker, but also can lead the sound pressure of each loudspeaker to be superposed, the vibration amplitude of the passive disk is increased, the bass is more full, the bass effect is more excellent, the structure is simple, and the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective structural view of a sound box provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an acoustic enclosure provided by an embodiment of the present invention;

fig. 3 is an exploded view of a sound box according to an embodiment of the present invention.

Description of reference numerals:

10. a case body shell; 101. a sound mixing cavity; 102. a low sound hole; 103. a sound introducing hole; 20. a speaker assembly; 201. a position avoiding cavity; 21. a speaker; 211. a magnetic circuit mechanism; 212. a vibration mechanism; 22. a speaker support; 30. a driven disc; 40. a box body bracket; 41. a rack body; 42. a frame base; 421. a non-slip mat; 43. a top cover; 50. a breathable support; 60. a sound outlet grille; 70. a display screen; 71. a support housing; 72. a touch module; 73. light-transmitting protective film

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention provides a sound box, which includes a box casing 10, a speaker assembly 20, a passive plate 30, a box support 40, an air permeable support 50, a sound outlet grid 60, and a display screen 70.

Referring to fig. 2, the box casing 10 is cylindrical, the box casing 10 has a sound mixing cavity 101, and in a use state, the box casing 10 extends in an up-down direction, and a bass hole 102 and a sound induction hole 103 both connected to the sound mixing cavity 101 are opened at both extending ends, so that the bass hole 102 and the sound induction hole 103 are spaced apart from each other, and an airflow channel for airflow generated by vibration is formed from the sound induction hole 103 to the bass hole 102. The box casing 10 may be a square cylinder or any other shape.

Referring to fig. 2 and 3, the speaker assembly 20 is connected to the cabinet housing 10 and covers the sound introducing hole 103, the speaker assembly 20 includes a speaker holder 22 connected to the cabinet housing 10 and at least two speakers 21 connected to the speaker holder 22 and used for playing audio, and the sound emitting direction of the speakers 21 faces outward, so that a user can clearly hear the sound emitted by the speakers. The speaker support 22 is formed with a plurality of support holes, and a speaker 21 is mounted at one of the support holes. The speaker holders 22 are used to support and connect the speakers 21, and to allow the speakers 21 to be spaced apart. Each speaker 21 can be arranged along the extending direction of box shell 10, and each speaker 21 all moves towards same direction sound production like this, can't consider the audio in other directions, for making the user can all hear sound in all directions, and keep good audio, each speaker 21 is cyclic annular distribution and its play sound direction all moves towards the horizontal direction, if this audio amplifier is broadcast indoor like this, whole room just can be filled to sound, and the user all can obtain high-quality music experience in the optional position.

Referring to fig. 2 and 3, the passive disk 30 can vibrate under the action of sound pressure, and is connected to the cabinet housing 10 and covers the bass hole 102, the cabinet housing 10, the speaker assembly 20 and the passive disk 30 together enclose a sealed space, the speaker 21 can vibrate air in the sealed space, and the air pushes the passive disk 30 to vibrate under the action of the sound pressure, and the passive disk 30 pushes external air to vibrate, so as to generate a bass effect. If the space enclosed by the cabinet housing 10, the speaker unit 20 and the passive disk 30 is not sealed, the sound pressure is dispersed outward, and is not easily transmitted to the passive disk 30 or the sound pressure transmitted to the passive disk 30 is small, which affects the bass effect.

The sound box of the invention enables the box body shell 10, the loudspeaker component 20 and the driven disk 30 to jointly surround to form a sealed space, so that the loudspeaker 21 can drive the air in the sealed space to vibrate when playing audio, and also enables the discharge capacity of the vibrating air flow generated by each loudspeaker 21 to be mixed and tend to balance in the sound mixing cavity 101 by arranging the sound mixing cavity 101, and the driven disk 30 generates regular rhythmical agitation under the action of the balanced vibrating air flow, so as to push the air, and the vibration is transmitted into the ears of people, thereby manufacturing the bass sound effect. The sound box of the invention replaces the traditional subwoofer to send bass through the sound mixing cavity 101 and the passive disk 30, the sound mixing cavity 101 not only can automatically balance the vibration air flow discharge capacity of each loudspeaker 21, but also can lead the sound pressure of each loudspeaker 21 to be superposed, the vibration amplitude of the passive disk 30 is increased, the bass is more full, the bass effect is more excellent, the structure is simple, and the production cost is reduced.

The frequency of the sound can be generally subdivided into eight frequency points of ultra bass, mid treble, sub treble, treble and very treble, for example, eight frequency points are divided from 20HZ to 20 kHZ. But the air current discharge capacity that the speaker 21 vibration of the audio frequency of broadcast different frequency points produced also is different, if not set up mixed sound chamber 101 then the air vibration confusion in the enclosure space, and each regional acoustic pressure is unbalanced, easily leads to being moved disk 30 vibration confusion, and the bass rhythm is unstable, influences the bass effect. Referring to fig. 1 and 3, in order to solve the problem, in the sound box, the box casing 10 is configured to be cylindrical, the passive disc 30 is disposed opposite to the sound introducing hole 103, the speakers 21 are uniformly distributed on the circumferential direction of the speaker holder 22, so that the distances between the speakers 21 and the passive disc 30 are equal, and the displacements of the vibrating air flows generated by the speakers 21 can be sufficiently mixed at the same transmission distance, so that the vibration of the passive disc 30 is balanced and rhythmic. If the distances between the speakers 21 and the passive disk 30 are different, the displacements of the vibrating airflows generated by the speakers 21 are mixed unevenly, and the passive disk 30 vibrates irregularly, resulting in a poor bass effect.

Referring to fig. 2, preferably, the speaker holder 22 and the plurality of speakers 21 together form an avoiding cavity 201 communicated with the sound mixing cavity 101, and the avoiding cavity 201 and the sound mixing cavity 101 together form the above-mentioned sealed space. The air current discharge capacity that each speaker 21 produced is at the preliminary mixing in keeping away a chamber 201 to in mixing sound chamber 101 interior harmony to balanced state, keep away a chamber 201 and not only enlarged the size in confined space, enlarged the distance between each speaker 21 and passive dish 30, make the bass effect more outstanding, reduced the height of box shell 10 under the condition of the same broadcast effect moreover, make the audio amplifier more small and exquisite, practice thrift the space. Meanwhile, the avoiding cavity 201 can also be used for arranging electric connecting wires of the loudspeaker 21, and plays a certain role in heat dissipation.

Referring to fig. 2 and 3, in the present embodiment, the speaker 21 includes a magnetic circuit mechanism 211 for converting an electric signal into a magnetic signal and a vibration mechanism 212 for converting the magnetic signal into an acoustic signal through vibration, the magnetic circuit mechanism 211 is located in the avoiding cavity 201, and the vibration mechanism 212 is connected to the supporting hole to transmit vibration energy to the air in the mixing cavity 101 through the air in the sealed space. Wherein, magnetic circuit mechanism 211 is including the magnet that is used for producing magnetic field, the U iron that is used for increasing magnetic field, the magnificent department that is used for leading magnetic, vibration mechanism 212 is including the voice coil loudspeaker voice coil that is used for electrically conducting and the sound membrane that is used for the vibration, the sound membrane is connected in loudspeaker support 22 and is covered in the support hole, the vibration of sound membrane can drive the air of its inside and outside both sides and produce the vibration, the vibration of outside air makes the people ear hear the sound, the vibration transmission of inside air is to mixing sound chamber 101 and drive driven disk 30 vibration to send bass.

Referring to fig. 2 and 3, the cabinet support 40 is used for supporting the cabinet housing 10 and the speaker assembly 20 off the ground for maintaining the balance of the sound box. The cabinet support 40 includes a frame body 41 made of a flexible material, a frame base 42 for placing on the ground, and a top cover 43 located above the speaker assembly 20, a non-slip mat 421 for preventing slipping is provided on the bottom surface of the frame base 42, the frame body 41 is connected to the frame base 42 and extends upward, and the top cover 43 is connected to the extending end of the frame body 41. Loudspeaker component 20 passes through box shell 10 and connects in the side of frame body 41, frame base 42 can set up to just loudspeaker component 20 to make loudspeaker component 20 can stably hang on box support 40, frame body 41 can make loudspeaker component 20 and ground interval set up, because it is made by toughness material, consequently can absorb loudspeaker component 20's vibration energy, with the vibration that reduces frame base 42, avoid the shell of audio amplifier because the vibration constantly collides with ground and takes place wearing and tearing, reduce the noise that produces between audio amplifier and the ground. The flexible material is preferably a stainless steel material capable of preventing the case bracket 40 from rusting while absorbing shock. Preferably, the box bracket 40 is a box bracket 40 integrally formed of stainless steel, i.e. the frame body 41, the frame base 42 and the top cover 43 are all made of stainless steel, so as to facilitate processing, and have high stability and are not easy to break. The top cover 43 is located above the speaker assembly 20 for preventing the speaker assembly 20 from falling ash. The frame base 42 is preferably ring-shaped, and increases a supporting area and reduces the weight of the casing bracket 40. The anti-slip pad 421 may be a rubber pad, which can absorb certain vibration energy while preventing slipping.

Referring to fig. 2 and 3, the air permeable support 50 is connected to the speaker assembly 20 and is used for preventing dust from falling off from the speaker 21, and the air permeable support 50 includes a support frame connected to the speaker assembly 20 and covering the speaker 21, and an air permeable membrane wrapped around the support frame. The support frame is in a grid shape to avoid blocking the air flow, and is used for supporting the flexible air permeable membrane. The ventilated membrane can block large particle dust and insects and does not influence the sounding of the loudspeaker 21. In this embodiment, the supporting frame is covered on the speaker support 22 in a cover shape, and the breathable film is made of a textile material, preferably a daily cloth, which is easy to obtain, and is breathable and dustproof while saving cost.

Referring to fig. 2 and 3, the sound outlet grille 60 is connected to the cabinet housing 10 in a cover shape and covers the air permeable support 50, the sound outlet grille 60 is made of a hard material, and the sound outlet grille 60 has an air permeable gap and plays a role in protection and prevents the speaker assembly 20 from being damaged. In this implementation, go out sound grid 60 and can also regard as the base support box shell 10 of audio amplifier to make driven disk 30 up, when driven disk 30 vibrates like this, the air current of its production can not blockked by ground or wall, and the bass audio can fill whole room, makes the user obtain better music and experiences.

Referring to fig. 1 and 3, a display screen 70 is connected to the box housing 10 and electrically connected to the speaker assembly 20, and can display a playlist, an operation interface or a video image, so that the speaker can perform a multifunctional operation, and a user experience is better. In this embodiment, the display screen 70 is a curved touch screen, the curved touch screen is a curved structure extending circumferentially around the case housing 10, the curved touch screen is connected to the case housing 10 and avoids the speaker assembly 20, and the curved touch screen is electrically connected to the speaker assembly 20 and is used for a user to touch and operate to control the speaker assembly 20. Be the curved surface structure and encircle the curved surface touch-sensitive screen that extends along box shell 10 circumference through the setting for the user can see its picture that shows along box shell 10 circumference homoenergetic at box shell 10, so that the user watches and operates in different positions, has strengthened the human-computer interaction effect, has optimized user experience.

Referring to fig. 3, in particular, the curved touch screen includes a supporting housing 71, a touch module 72 connected to the supporting housing 71, and a light-transmitting protective film 73 covering the touch module 72, wherein the supporting housing 71 is circumferentially wrapped around the box casing 10. The supporting shell 71 is wrapped around the box casing 10 along the circumferential direction, the touch module 72 is used for sensing a touch area of a user and transmitting a control command corresponding to the touch area to the speaker 21 so as to control the speaker 21 and adjust an audio playing parameter of the speaker 21, and the light-transmitting protective film 73 is used for preventing the touch module 72 from being dusted or scratched by the outside and has a waterproof function.

The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented merely for purposes of illustration and description of the principles of the invention and is not intended to limit the scope of the invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.

Claims

1. An acoustic enclosure, comprising:

2. The sound box of claim 1, wherein each of the speakers is configured to play audio at a different frequency.

3. The acoustic enclosure of claim 2, wherein the speaker assembly further comprises a speaker bracket coupled to the enclosure housing, the speaker bracket defining a plurality of support holes, a speaker being mounted at one of the support holes.

4. The sound box according to claim 3, wherein said speaker holder and said plurality of speakers together form a space avoiding cavity communicating with said sound mixing cavity, and said space avoiding cavity and said sound mixing cavity together form said sealed space.

5. An acoustic enclosure according to claim 4, wherein the loudspeaker includes magnetic circuit means for converting electrical signals into magnetic signals and vibration means for converting magnetic signals into acoustic signals by vibration, the magnetic circuit means being located in the space avoiding chamber, the vibration means being connected to the support aperture to transfer its vibration energy through the air in the sealed space to the air in the mixing chamber.

6. The acoustic enclosure according to claim 1, wherein the cabinet casing has a cylindrical shape and the low-sound hole and the sound-introducing hole are respectively provided at two extending ends of the cabinet casing.

7. The acoustic enclosure of claim 1, further comprising an air permeable support coupled to the speaker assembly, the air permeable support comprising a support frame coupled to the speaker assembly and covering the speaker and an air permeable membrane surrounding the support frame.

8. The acoustic enclosure of claim 7, wherein the air permeable membrane is an air permeable membrane made of a textile material.

9. The acoustic enclosure of claim 7, further comprising an acoustic grille coupled to the enclosure housing and covering the air permeable support.

10. The acoustic enclosure of claim 1, further comprising a display screen coupled to the enclosure housing and electrically coupled to the speaker assembly.